8322539: Parallel: Remove duplicated methods in PSAdaptiveSizePolicy

Reviewed-by: tschatzl, kbarrett

src/hotspot/share/gc/parallel/psAdaptiveSizePolicy.cpp

@@ -873,17 +873,6 @@ size_t PSAdaptiveSizePolicy::scale_down(size_t change,
   return reduced_change;
 }
 
-size_t PSAdaptiveSizePolicy::eden_increment(size_t cur_eden,
-                                            uint percent_change) {
-  size_t eden_heap_delta;
-  eden_heap_delta = cur_eden / 100 * percent_change;
-  return eden_heap_delta;
-}
-
-size_t PSAdaptiveSizePolicy::eden_increment(size_t cur_eden) {
-  return eden_increment(cur_eden, YoungGenerationSizeIncrement);
-}
-
 size_t PSAdaptiveSizePolicy::eden_increment_with_supplement_aligned_up(
   size_t cur_eden) {
   size_t result = eden_increment(cur_eden,
@@ -896,23 +885,6 @@ size_t PSAdaptiveSizePolicy::eden_decrement_aligned_down(size_t cur_eden) {
   return align_down(eden_heap_delta, _space_alignment);
 }
 
-size_t PSAdaptiveSizePolicy::eden_decrement(size_t cur_eden) {
-  size_t eden_heap_delta = eden_increment(cur_eden) /
-    AdaptiveSizeDecrementScaleFactor;
-  return eden_heap_delta;
-}
-
-size_t PSAdaptiveSizePolicy::promo_increment(size_t cur_promo,
-                                             uint percent_change) {
-  size_t promo_heap_delta;
-  promo_heap_delta = cur_promo / 100 * percent_change;
-  return promo_heap_delta;
-}
-
-size_t PSAdaptiveSizePolicy::promo_increment(size_t cur_promo) {
-  return promo_increment(cur_promo, TenuredGenerationSizeIncrement);
-}
-
 size_t PSAdaptiveSizePolicy::promo_increment_with_supplement_aligned_up(
   size_t cur_promo) {
   size_t result =  promo_increment(cur_promo,
@@ -925,12 +897,6 @@ size_t PSAdaptiveSizePolicy::promo_decrement_aligned_down(size_t cur_promo) {
   return align_down(promo_heap_delta, _space_alignment);
 }
 
-size_t PSAdaptiveSizePolicy::promo_decrement(size_t cur_promo) {
-  size_t promo_heap_delta = promo_increment(cur_promo);
-  promo_heap_delta = promo_heap_delta / AdaptiveSizeDecrementScaleFactor;
-  return promo_heap_delta;
-}
-
 uint PSAdaptiveSizePolicy::compute_survivor_space_size_and_threshold(
                                              bool is_survivor_overflow,
                                              uint tenuring_threshold,

src/hotspot/share/gc/parallel/psAdaptiveSizePolicy.hpp

@@ -135,14 +135,10 @@ class PSAdaptiveSizePolicy : public AdaptiveSizePolicy {
                                    size_t desired_total);
 
   // Size in bytes for an increment or decrement of eden.
-  virtual size_t eden_increment(size_t cur_eden, uint percent_change);
-  virtual size_t eden_decrement(size_t cur_eden);
   size_t eden_decrement_aligned_down(size_t cur_eden);
   size_t eden_increment_with_supplement_aligned_up(size_t cur_eden);
 
   // Size in bytes for an increment or decrement of the promotion area
-  virtual size_t promo_increment(size_t cur_promo, uint percent_change);
-  virtual size_t promo_decrement(size_t cur_promo);
   size_t promo_decrement_aligned_down(size_t cur_promo);
   size_t promo_increment_with_supplement_aligned_up(size_t cur_promo);
 
@@ -173,9 +169,6 @@ class PSAdaptiveSizePolicy : public AdaptiveSizePolicy {
   virtual GCPolicyKind kind() const { return _gc_ps_adaptive_size_policy; }
 
  public:
-  virtual size_t eden_increment(size_t cur_eden);
-  virtual size_t promo_increment(size_t cur_promo);
-
   // Accessors for use by performance counters
   AdaptivePaddedNoZeroDevAverage*  avg_promoted() const {
     return _gc_stats.avg_promoted();

src/hotspot/share/gc/shared/adaptiveSizePolicy.hpp

@@ -263,12 +263,12 @@ class AdaptiveSizePolicy : public CHeapObj<mtGC> {
     // to use minor_collection_end() in its current form.
   }
 
-  virtual size_t eden_increment(size_t cur_eden);
-  virtual size_t eden_increment(size_t cur_eden, uint percent_change);
-  virtual size_t eden_decrement(size_t cur_eden);
-  virtual size_t promo_increment(size_t cur_eden);
-  virtual size_t promo_increment(size_t cur_eden, uint percent_change);
-  virtual size_t promo_decrement(size_t cur_eden);
+  size_t eden_increment(size_t cur_eden);
+  size_t eden_increment(size_t cur_eden, uint percent_change);
+  size_t eden_decrement(size_t cur_eden);
+  size_t promo_increment(size_t cur_eden);
+  size_t promo_increment(size_t cur_eden, uint percent_change);
+  size_t promo_decrement(size_t cur_eden);
 
   virtual void clear_generation_free_space_flags();